Search For Cp Violation In B0s To Jpsi Phi

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Search For Cp Violation In B0s To Jpsi Phi

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Author :
language : en
Publisher:
Release Date : 2008

Search For Cp Violation In B0s To Jpsi Phi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

The CDF experiment, which uses p{bar p} collisions at √s = 1.9 TeV produced at the Fermilab Tevatron, is unique in its ability to observe all flavors of B hadrons and measure their properties. Among them, CP violation is of fundamental interest. In the B+ and B° systems, measurements of CP violation parameters performed essentially at B factories have borne out the predictions of CKM model. Little is known, experimentally, about CP violation in the B{sub s}° system. The standard model predicts very little CP violation there, thus any nonzero measurement could be an indication of new physics. In this thesis, we will report on the very first flavor-tagged analysis of approximately 2000 B{sub s}° → J/[psi][phi] decays reconstructed in a 1.35 fb−1 data sample collected at CDF. This channel is sensitive not only to the width difference [Delta][Lambda] in the B{sub s}° system but also to the CP violation parameter [beta]{sub s}. The final result we obtain is a confidence region in the two dimensional space of [beta]{sub s} and [Delta][Lambda]. Assuming the standard model predictions of [beta]{sub s} and [Delta][Lambda], the probability is 15%, corresponding to 1.5 Gaussian standard deviations.

Physics Briefs

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Author :
language : en
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Release Date : 1986

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Physics categories.

High Energy Physics Index

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Author :
language : en
Publisher:
Release Date : 1991

High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Particles (Nuclear physics) categories.

Search For Cp Violation In Neutral B S Meson Decaying To J Psi Phi

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Author :
language : en
Publisher:
Release Date : 2009

Search For Cp Violation In Neutral B S Meson Decaying To J Psi Phi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Search for CP violation in neutral B(s) meson decaying to J/psi phi.

Science Citation Index

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language : en
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Release Date : 1992

Science Citation Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Science categories.

Vols. for 1964- have guides and journal lists.

Measurement Of The Cp Violating Phase Beta S In B0s J Psi Phi Decays With The Cdf Ii Detector

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Author :
language : en
Publisher:
Release Date : 2012

Measurement Of The Cp Violating Phase Beta S In B0s J Psi Phi Decays With The Cdf Ii Detector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

We present a measurement of the \CP-violating parameter \betas using approximately 6500 $\BsJpsiPhi$ decays reconstructed with the CDF\, II detector in a sample of $p\bar p$ collisions at $\sqrt{s}=1.96$ TeV corresponding to 5.2 fb${̂-1}$ integrated luminosity produced by the Tevatron Collider at Fermilab. We find the \CP-violating phase to be within the range $\betas \in [0.02, 0.52] \cup [1.08, 1.55]$ at 68% confidence level where the coverage property of the quoted interval is guaranteed using a frequentist statistical analysis. This result is in agreement with the standard model expectation at the level of about one Gaussian standard deviation. We consider the inclusion of a potential $S$-wave contribution to the $\Bs\to J/\psi K+̂K-̂$ final state which is found to be negligible over the mass interval $1.009

Measurement Of The Cp Violating Phase Phi S Using B 0 S J Psi Phi And B 0 S J Psi Pi Pi Decays With The Lhcb Experiment

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language : en
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Release Date : 2013

Measurement Of The Cp Violating Phase Phi S Using B 0 S J Psi Phi And B 0 S J Psi Pi Pi Decays With The Lhcb Experiment written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Study Of Cp Violation In B0s 2 J Psi Phi Decays At

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language : en
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Release Date : 2008

Study Of Cp Violation In B0s 2 J Psi Phi Decays At written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

In a universe dominated by matter, the source of CP violation may explain one of the greatest mysteries in particle physics: what happened to the antimatter? The Standard Model successfully describes CP violation in the B+ and Bd0 systems, yet insufficiently accounts for the observed matter-antimatter asymmetry. The Standard Model predicts a small value of CP violation in the Bs0 meson system, which has only recently been experimentally tested. A measurement of large, anomalous CP violation in the Bs0 system would be a clear indication of new physics sources beyond the Standard Model. This dissertation describes a study of CP violation in approximately 2000 Bs0 → J/[Psi][Phi] decays reconstructed in a 2.8 fb-1 data sample collected by the D0 Run II detector at Fermi National Accelerator Laboratory in Batavia, Illinois. This data was provided by p$\bar{p}$ collisions at √s = 1.96 TeV delivered by the Tevatron accelerator between April 2002 and August 2007. Flavor-tagged Bs0 → J/[Psi]([mu]+[mu]-)[Phi](K+K-) decays and an angular analysis are used to study the time evolution of the final state angular distributions. From this analysis, we measure the width difference between the heavy and light mass eigenstates, BsL and BsH , to be [Delta][Gamma]s = 0.19 ± 0.07 and the CP-violating phase [Phi]s = -0.57-0.30+0.24.

Study Of Cp Violation In Bs2 Psi Phi Decays At Cdf

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Author :
language : en
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Release Date : 2007

Study Of Cp Violation In Bs2 Psi Phi Decays At Cdf written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Joint Experimental Theoretical Seminar.

Measurement Of Cp Violation In The B0s Decay And Search For The B0 Decay

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Author : Roel Aaij
language : en
Publisher:
Release Date : 2019

Measurement Of Cp Violation In The B0s Decay And Search For The B0 Decay written by Roel Aaij and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.